Ca) 
oo 
Or 
American Fisheries Society. 
trout have disappeared, and to-day they are inhabited by yellow 
perch, pickerel and bass. The object of this work is to discover 
methods to grow these perch economically, and restock these 
lakes by changes of blood from one lake to another, and if 
anyone has done any work in this respect we would like to hear 
from him. 
The eggs are placed on the trays in lace form; and another 
thing that I observed of this matter is this: I had placed 
grasses in the ponds and eggs were deposited on the grasses ; 
but I found that the action of the waves had taken a great many 
of the eggs off the grasses, and they fell to the bottom and 
smothered; but by measuring them up after the fish had 
spawned and placing them on the trays, that was avoided, and 
for that reason I used the tray. 
Mr. Harron: To handle yellow perch eggs on troughs 
would require a great many troughs, would it not ? 
Mr. N. R. Buller: They can be easily handled. 
Mr. Meehan: Is not the trough made particularly intended 
for the purposes of distribution in our inland streams? 
Mr. N. R. Buller: Yes. To plant the fry in large quantities 
it is necessary to use jars. The trough would not be practicable 
for that purpose. 
Mr. Harron: I undertook to hatch them at our station, but 
found I could not do so. You can easily develop them in 
troughs, but you cannot hatch them loose in troughs, I under- 
stand, for they become like a mass of jelly, and so buoyant that 
they will float down and constantly clog the screens. 
Mr. Buller: I have found no trouble in handling them on 
a tray. 
Mr. Titcomb: How many toa tray? 
Mr. Buller: About 50,000. I intended merely to raise 
10,000 fingerlings. 
Mr. Titcomb: Did you raise 10,000 fish to the fingerling 
state ? 
ee eS: 
15 
